More than 35% of workers in the U.S. are not getting enough sleep, a new study has found. That can lead to serious workplace safety issues, especially for occupations that use heavy machinery, people who work in factories or warehouses, construction or as drivers. Among workers in other occupations it can lead to costly mistakes, friction among staff and poor communications, all of which can have a detrimental effect on your operations. The study by researchers at Ball State University looked at self-reports of sleep duration among 150,000 adults working in different occupations between 2010 and 2018. Researchers found the…